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Round|Lab Grown|IGI

1.51ct D FL Round Lab Grown Diamond

ID • D/FL • IGI LG816624136

Shape and cutting style on the report: Round brilliant

Certificate IGI LG816624136

Diamond specifications and retailer prices

From $645 CAD
$461 USD
As of October 29, 2026
Save $3,820 CAD (86%) vs most expensive(unlock to see where)
20 retailers carry this diamond
Most expensive: $4,465 CAD at Brilliant Earth · As of October 28, 2026
View at Brilliant Earth

About this 1.51ct lab-grown round diamond

This 1.51ct lab-grown round sits in the one-and-a-half to two carat band, graded D colour (colourless) and FL clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG816624136 or 816624136. Listed at 20 retailers as of October 28, 2026, with prices from $645 to $4,465, a $3,820 spread on the same certified stone. Brilliant Earth lists it at $4,465. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.51
Carat
D
Color
FL
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.8°
Pavilion angle40.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG816624136
Dimensions7.42 × 7.36 × 4.49 mm
L/W Ratio1.01
Girdle conditionFaceted
Cert comments
As Grown - No indication of post-growth treatment This Laboratory Grown Diamond was created by High Pressure High Temperature (HPHT) growth process Type II
Top View
7.42 mm7.36 mm1.51 ctD / FL
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG816624136
Side View
Table 58.0%Crown 34.8°Girdle: MediumPavilion 40.6°Culet: NoneDepth 60.6%

Caratlytics Score

How it works →
A+
Exceptional
Excellent quality and great value
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 29
Current: $4,465 CAD|Low: $645 CAD|High: $4,941 CAD|Avg: $1,859 CAD|-9.6%
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
Retailer 15
Retailer 16
Retailer 17
Retailer 18
Retailer 19
Retailer 20
October 30, 2026
Retailer 10$645 CAD
Retailer 5$721 CAD
Retailer 6$722 CAD
Retailer 4$801 CAD
Retailer 12$840 CAD
Retailer 15$1,127 CAD
Retailer 18$1,183 CAD
Retailer 13$1,224 CAD
Retailer 9$1,236 CAD
Retailer 2$1,319 CAD
Retailer 14$1,375 CAD
Retailer 19$1,415 CAD
Retailer 7$1,860 CAD
Retailer 16$2,151 CAD
Retailer 20$2,572 CAD
Retailer 8$2,615 CAD
Retailer 3$2,810 CAD
Retailer 17$2,837 CAD
Retailer 11$3,511 CAD
Brilliant Earth$4,465 CAD

29 data points across 20 retailers

20 retailers$645 CAD to $4,465 CAD

A+
Cheapest Retailer
-
$645 CAD
$461 USD
A
Retailer 2
-
$721 CAD
$515 USD
View
Final sale: no returns
A
Retailer 3
-
$722 CAD
$516 USD
View
A
Retailer 4
-
$801 CAD
$572 USD
View
Retailer 5
-
$840 CAD
$600 USD
View
Price last confirmed 19 days ago
A
Retailer 6
-
$1,127 CAD
$805 USD
View
A
Retailer 7
-
$1,183 CAD
$845 USD
View
A
Retailer 8
-
$1,224 CAD
€833 EUR
View
A
Retailer 9
-
$1,236 CAD
$883 USD
View
A
Retailer 10
-
$1,319 CAD
£742 GBP
View
A
Retailer 11
-
$1,375 CAD
ZAR 15,873 ZAR
View
A
Retailer 12
-
$1,415 CAD
$1,011 USD
View
B+
Retailer 13
-
$1,860 CAD
$1,329 USD
View
B+
Retailer 14
-
$2,151 CAD
$1,537 USD
View
B+
Retailer 15
-
$2,572 CAD
$1,838 USD
View
B+
Retailer 16
-
$2,615 CAD
$1,869 USD
View
B+
Retailer 17
-
$2,810 CAD
$2,008 USD
View
B+
Retailer 18
-
$2,837 CAD
$2,027 USD
View
B
Retailer 19
-
$3,511 CAD
£1,975 GBP
View
Most Expensive
B
Brilliant Earth
21018569A · Oct 28
$4,465 CAD
$3,190 USD
View
19 more retailers have this diamond
Prices start from $645 CADSave up to $3,820 CAD

Carat Hunter is not affiliated with, endorsed by, or sponsored by any retailer listed. Retailer information is from publicly available sources and may not be current. Verify details directly with the retailer before purchasing. Return terms as we hold them. Check the retailer's own returns page before you buy.

A+
1.51ct Round
$645 CAD